Month: September 2022

TALKING TREES. "Plants may “eavesdrop” on volatile organic compounds (VOCs) released by herbivore-attacked neighbors to activate defenses before being attacked themselves. Transcriptome and signal cascade analyses of VOC-exposed plants suggest that plants eavesdrop to prime direct and indirect defenses and to hone competitive abilities." https://lnkd.in/etuE4VS View in LinkedIn

VOLATILES. "C6-volatiles, aldehydes, and alcohols, all products of the HPL pathway, are synthesized rapidly upon wounding. These compounds also act as signaling molecules in the defense response." https://lnkd.in/eSPYN6W View in LinkedIn

VOLATILES. "When plants are damaged by insects, the amount of volatiles normally released by an intact plant increases significantly. These volatiles are qualitatively and/or quantitatively different from those emitted by undamaged or mechanically wounded plants." https://lnkd.in/eSPYN6W View in LinkedIn

INTERPLANT WARNING SYSTEM. "Volatile organic compounds like jasmonate can warn nearby plants of a herbivorous predator that is causing damage to a neighbor, and the neighboring plants, even different species, smell the signal and within minutes start to make defensive molecules to ward off the herbivores." https://lnkd.in/eMFZkSs View in LinkedIn

INITIAL SIGNAL that stimulates jasminate synthesis, or the first sniff of trouble by the plant. "JA signaling can be induced by a range of abiotic stresses, including osmotic stress, wounding, drought, and exposure to “elicitors,” which include chitins, oligosaccharides, oligogalaturonides, and extracts from yeast." https://lnkd.in/efDsWiV View in LinkedIn

JASMONIC ACID SYNTHESIS. "Microarray analysis reveals that five out of 41 genes responding to JA are JA biosynthesis genes, indicating the existence of a positive feedback regulatory system for JA biosynthesis." https://lnkd.in/efDsWiV View in LinkedIn

JASMONIC ACID SYNTHESIS. "JAs therefore appear to be synthesized locally in response to stress cues and developmental cues, and the products of this pathway provide a feedback loop for amplification of the signal." https://lnkd.in/efDsWiV View in LinkedIn

PLANT HORMONE CROSSTALK regulates genetic fine-tuning of plant defenses, which is highly regulated and biologically efficient. https://lnkd.in/eRDyXB8 View in LinkedIn

PLANT HORMONE CROSSTALK. The two key plant hormones are constructed to separately go after the two main classes of plant predators, the biotrophic pathogens (salicylic acid) and herbivorous insects and neurotrophic pathogens (jasmonate). A second layer of hormones works synergistically with each of them. https://lnkd.in/eRDyXB8 View in LinkedIn

RECENT JASMONATE BREAKTHROUGH. "In 2007, however, there was a breakthrough in analysis of JA signalling with the discovery of the so-called JAZ proteins (JAZMONATE ZIM DOMAIN proteins) as negative regulators in JA-induced gene expression. With the JAZ proteins, however, the first mechanistic explanations were possible on JA perception." https://lnkd.in/edPEBi9 View in LinkedIn